Improvement in weather-strips



H; B.. ALVORD. Weather Strip No. 202,088. Patented April 9, I878.

igitncsszst ATTOFKNEY.

N. PETERS, FHOTD-UTHDGRAPHER, WASHINGTO UNIT D STATES PATENT 'QFFICEL'HUBBEL B. ALVORD, OF VINELAND, NEW JERSEY.

IMPROVEMENT IN WEATHER-STRIPS. r

Specification forming part of Letters Patent No. 202,088; dated April 9,1878 application filed February 23, 1878.

To all whom it may concern:

Be it known that I, HUBBEL B. ALVORD, of Vineland, in the county ofCumberland and State of New Jersey, have invented a new and usefulImprovement in' Weather-Thresholds, which improvement is fully set forthin the following specification and accompanying drawings, in whichFigures 1 and 2 are front views of the threshold, embodying myinvention. Figs. 3 and 4 are end views thereof. Fig. 5 is a perspectiveview thereof.

Similar letters of reference indicate correspending parts in the severalfigures.

My invention consists of a threshold made of extensible parts, so as tobe applicable to doors and windows of different widths.

It also consists of a weather-strip formed of an adjustableconnecting-plate and an adjustable sill-piece hinged thereto, arestoringspring, and an elevating-spring, in combination with an inclineor cam secured to the door-frame, for forcing down the sill-piece, aswill be hereinafter set forth.

Referring to the drawings, A represents the connecting-plate, consistingof two or more horizontallyarranged plates, which are secured,continuousof each other, to the lower portion of a door, and they arerecessed or somewhat tubular in the direction of their lengths, so as toform a space, a. Slots or perforations b are formed in the plate, sothat the latter may be lengthened or shortened, or adjusted relativelyto the width of the door or window to which the plate is secured.

Along the lower edge of the plate Athere is a bead, d,'which isoverlapped by atubular or bent portion, 6, at the rear of a shift. ingsill-piece, B, of the threshold, said head and portion 6 constituting ahinge-joint for the sill-piece. This sill-piece projects horizontally,or somewhat horizontally, forward from the base of the plate A, and itis formed of two or more pieces, continuous of each other, and havingslots or perforations f f, whereby the piece may be lengthened orshortened, or adjusted relatively to the width of the door or window towhich the piece is secured.

G 0 represent springs, which are secured to the plate A or the door, andso disposed that they press against the sill-piece, so as to elevate thesame; and 0 represents a spring, which is arranged in the space a of theplate. A. One end of this spring is secured to the plate A, and theother end to the sill-piece B, for restoring said piece to its normalposition,

which is toward the hinged side of the door, the sill-piece beingsomewhat longer than the connecting-plate A, and shifting or moving, soas to permit the closing of the door, and also to fit snugly within thedoor frame or jamb.

D represents a horizontal projection, which is inclined on its lowerface, and it is secured to thelower end of the door-jamb at the hingedside of the door, and it is so arranged that in closing the door thesill-piece will come in contact with the projection and ride on theinclined face thereof. This operation forces down the sill -piece, andpresses it tightly against the base or sill of the door-frame, thusclosing the joint of said base and the door, whereby cold, water, anddust are prevented from entering at said joint, the advantages whereofare evident.

It will be noticed that, owing to the sweep of the door, the sill-piece,striking on its inner end on the door-frame, must necessarily shift inorder to prevent said piece projecting and interfering with the closingof the door. This provision is also necessary in order to employ asill-piece of the exact width of the frame, thus preventing the entranceof cold, &c., at the sides of the strip; but this shifting sill has beenheretofore known.

In opening the door, the sill-piece gradually clears the projection orcam D and returns to its normal position, and the springs O Gimmediately elevate the sill-piece, thus permitting the easy opening ofthe door, and so holding said piece that the subsequent cl0s-. ing ofthe door is not interfered with by the sill-piece, and the parts arereadily operative when the door is again closed.

I am aware that thresholds have been constructed in various ways, andthat a shifting sill-piece and connecting-plate are not new. Suchfeatures I therefore disclaim; but,

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-- 1. The weather-strip having anadjustable and operating as described, and forming an connecting-plateand adjustable sill-piece, subimprovement in weather strips orthresholds,

stautially as and for the purpose set forth. for the purpose specified.

2. The adjustable connecting-plate A and H. B. ALVORD. adjustablesill-piece B, hinged thereto, in com- Witnesses; bination with thesprings G C, and with the JOHN A. WIEDERSHEIM, incline D, the severalparts being constructed SAMIL. M. GRIOE.

